Topic 3 Lesson 4 Waves and Information

Figure 1 represents _______________ signal.

• analog

• digital

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-3

Figure 2 represents ______________ signal.

• analog

• digital

Tags

NGSS.MS-PS4-3

A __________ can hear a smaller range of frequencies than a ___________.

• bird; human

• bat; snake

• porpoise; cricket

• bird; snake

Select two receivers in the system.

• The TV network satellite uplink and the repeater tower

• Both mobile TV phones

• The repeater tower and one mobile TV phone

• Both repeater towers

Tags

NGSS.MS-PS4-2

Which part of the diagram is the antenna?

• Mobile TV phone

• TV network satellite uplink

• Repeater tower

• Satellite relay

What interaction happens at the satellite relay?

• The digital information is decoded and changed into TV pictures and sound.

• The code is received by the network and sent to the receiver.

• The digital code is received by satellite and transmitted to a network.

• Pictures and sound are changed into a digital code.

Tags

NGSS.MS-PS4-3

What interaction happens at the repeater tower?

• The digital information is decoded and changed into TV pictures and sound.

• The code is received by the network and sent to the receiver.

• The digital code is received by satellite and transmitted to a network.

• Pictures and sound are changed into a digital code.

Tags

NGSS.MS-PS4-3

What interaction happens at the TV network satellite uplink?

• The digital information is decoded and changed into TV pictures and sound.

• The code is received by the network and sent to the receiver.

• The digital code is received by satellite and transmitted to a network.

• Pictures and sound are changed into a digital code.

Tags

NGSS.MS-PS4-3

What interaction happens at the mobile TV phone?

• The digital information is decoded and changed into TV pictures and sound.

• The code is received by the network and sent to the receiver.

• The digital code is received by satellite and transmitted to a network.

• Pictures and sound are changed into a digital code.

Tags

NGSS.MS-PS4-3

How is the flag system like a radio system?

• Both systems use digital signals in a short range from an antenna.

• Both systems send signals that are decoded by a receiver.

• Both systems receive sound waves converted into a signal.

• Both systems change digital signals into analog information.

Tags

NGSS.MS-PS4-3